Rochester 4G Carburetor Accelerator Pumps

Upgrade your Rochester 4G/4GC carburetor with our new high performance ethanol resistant Four-Jet accelerator pump assemblies and accelerator pump cups. Note: There are several versions of ethanol "Blue" accelerator pump cups, we only sell the ones that work the best.

There are 2 different diameter accelerator pump cups 21/32" and 3/4". Identify the correct pump assembly by matching your carburetor number. If carburetor number is not know or available, measure the cup diameter and overall (tip to tip) length of your old pump and select closest match.

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We are long time (35+ years) car guys, driving, drag racing, tuning and restoring muscle cars. In 2006 we started offering carburetor parts for fellow enthusiasts, allowing one stop shopping for all their carburetor needs. We now stock thousands of carburetor parts, shipping orders daily to our customers all over the world.
Our mission has always been to supply the best quality carburetor parts at a fair price with fast shipping, tech info and excellent customer service.